EP 3720522 B1 20230607 - DRUG DELIVERY DEVICE
Title (en)
DRUG DELIVERY DEVICE
Title (de)
ARZNEIMITTELABGABEVORRICHTUNG
Title (fr)
DISPOSITIF D'ADMINISTRATION DE MÉDICAMENTS
Publication
Application
Priority
- EP 17206304 A 20171208
- EP 18157285 A 20180216
- EP 2018084069 W 20181208
Abstract (en)
[origin: WO2019110839A1] A drug delivery device comprising a pumping system (4) and a liquid reservoir (7) fluidly connected to a delivery system outlet (12), the liquid reservoir comprising an elastic plunger (14) sealingly slidable within a container wall (13) of the liquid reservoir for expelling liquid out of the reservoir. The pumping system comprises a piston pump (5) comprising a plunger actuator arranged to displace the plunger (14), and a dosing unit (6) arranged downstream of the liquid reservoir (7) and fluidly connected to the liquid reservoir. The dosing unit (6) comprises a chamber portion (22) arranged between an inlet valve (24) and an outlet valve (26), the chamber portion (22) arranged to receive from the liquid reservoir a pump cycle volume of liquid under an operational pressure greater than ambient pressure generated by the piston pump, and to the deliver said pump cycle volume of liquid to the delivery system outlet, said pump cycle volume being dependent on the operational pressure.
IPC 8 full level
A61M 5/168 (2006.01); A61M 5/142 (2006.01); A61M 5/145 (2006.01)
CPC (source: EP US)
A61M 5/14248 (2013.01 - EP US); A61M 5/1452 (2013.01 - US); A61M 5/16809 (2013.01 - EP US); A61M 5/14228 (2013.01 - EP); A61M 5/1452 (2013.01 - EP); A61M 2005/14268 (2013.01 - US); A61M 2005/31518 (2013.01 - EP); A61M 2205/0216 (2013.01 - US); A61M 2205/10 (2013.01 - US); A61M 2205/3331 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2019110839 A1 20190613; CN 111432860 A 20200717; CN 111432860 B 20230808; EP 3720522 A1 20201014; EP 3720522 B1 20230607; EP 3720522 C0 20230607; US 11529458 B2 20221220; US 11813428 B2 20231114; US 2021162119 A1 20210603; US 2023122585 A1 20230420; US 2024100248 A1 20240328
DOCDB simple family (application)
EP 2018084069 W 20181208; CN 201880078668 A 20181208; EP 18819061 A 20181208; US 201816769566 A 20181208; US 202218068255 A 20221219; US 202318506136 A 20231110